Non-contact gas supply device and method for gas-film-sealed air-flotation physical simulation platform

Abstract

The invention discloses a gas film sealing non-contact gas supply device and method of a gas flotation physical simulation platform. A gas guide unit composed of a gas guide block and a gas guide holeis arranged in the center position below a translational motion platform of the gas flotation physical simulation platform in the vertical direction, the gas guide hole is located in the center of the gas guide block, a gas supply unit fixed to a foundation platform is correspondingly arranged below the gas guide unit, a gas supply hole is formed in the center of the gas supply unit, a large-areashallow cavity is formed on the periphery of the gas supply hole, so that when the gas flotation physical simulation platform conducts planar motion, the gas supply hole is located in the range of the shallow cavity all the time, and the finish machining faces of the gas guide unit and the gas supply unit are correspondingly arranged and kept at a distance at the micron scale. Non-contact gas film sealing of the gas flotation physical simulation platform supplied gas and the external ground environment is achieved, gas can be supplied ceaselessly, and the device and method have the beneficialeffects of theoretically infinite experiment time, small simulation environment disturbance torque and the like.

Description

technical field [0001] The invention belongs to the field of spacecraft physics simulation, and mainly relates to a non-contact air supply device and method for an air-film-sealed air-flotation physics simulation platform. Background technique [0002] With the rapid development of aerospace technology, the use of spacecraft continues to increase, and the requirements for rapid maneuverability, attitude stability and reliability of spacecraft are increasing. In order to verify and ensure the on-orbit motion performance of the spacecraft, it is particularly important to conduct ground simulation experiments that simulate the space environment of weightlessness and micro-disturbance torque. [0003] At present, the structure forms of the spacecraft ground simulation platform include screw guide rail contact type, air suspension non-contact type and magnetic suspension non-contact type. The friction torque of the screw guide simulation platform is large, and it is difficult to...

AI Technical Summary

Problems solved by technology

However, the gas supply method through the gas cylinder will bring problems such as limited experiment time and the quality of the moving platform changes with time. For the gas supply method to the air flotation platform through the external gas pipe, it will also bring the traction effect of the gas supply gas pipe and the high disturbance torque

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